Home / 15,357,679.69-21,193,458.44-8,388,355.79

Finding the Fourth Proportional to 15,357,679.69, 21,193,458.44 and 8,388,355.79

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Solution

The fourth proportional to 15,357,679.69, 21,193,458.44 and 8,388,355.79 is: 11,575,854.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,357,679.69 : 21,193,458.44 = 8,388,355.79 : x
  2. Step 2: Convert to fraction form
    15,357,679.69/21,193,458.44 = 8,388,355.79/x
  3. Step 3: Cross multiply
    15,357,679.69x = 21,193,458.44 × 8,388,355.79
  4. Step 4: Simplify right side
    15,357,679.69x = 177,778,269,667,389.28
  5. Step 5: Solve for x
    x = 177,778,269,667,389.28/15,357,679.69
  6. Step 6: Final answer
    x = 11,575,854.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.